package com.liushuyv.calculator.factory;

import com.liushuyv.calculator.bll.IOperation;
import com.liushuyv.calculator.bll.SubOperation;

/*
 **@Author:刘淑钰
 **Created on 2020/12/5
 */
public class SubFactory<T extends Number> implements IFactory<T> {
    public IOperation<T> getOperation(){
        return  new SubOperation<T>();//**3把它们都改成泛型模式，接下来去改界面
    }
}
